Vaporizer for explosive-engines.



' No. 694,708. Patented mar. 4, I902.

c. 0. WHITE. VAPOBIZER FOR EXPLOSIVE ENGINES.

(Application filed Feb. 11, 189B.)

2 Sheets-8heet I.

(No Model.)

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CZczz'enceQ No. 694,708. Patented Mar. 4, I902. c. "0. WHITE. VAPOBIZERFOR EXPLUSIVE ENGINES.

(Application filed Feb. 11, X898.) (No Model.) 2 Sheets$haet 2.

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through said opening will exhaust the oil from.

UNITED STATES PATENT OFFICE.

CLARENCE 0. WHITE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE- HALF TOEDWARD J. KIMBALL, OF MINNEAPOLIS, MINNESOTA.

VAPORIZER FOR EXPLOSlVE-ENGINES.

SPECIEIGATION forming partof Letters Patent No. 694,708, dated March. 4,1902. Application filed February 11, 1898. Serial No. 669,912. (Nomodel.)

gine by the retirement of the piston therein;

The invention consists generally in the' combination, with anengine-cylinder and its piston, of a mixing-chamber having an openinginto the cylinder and provided with an air-inlet opening, a valvenormally closing said air-inlet openingand adapted to resist theentrance of air therethrough to a limited extent, said mixing-chamberprovided with an airinlet opening intermediate between said valve andthe cylinder, and means for "supplying oil at a point near saidintermediwhereby the suction of air the air-duct and discharge the sameinto said mixing-chamber.

The invention further consists in various constructions and incombinations of parts, "all as hereinafter described, and particularlypointed out in the claims.

The invention will be more readily understood by reference to theaccompanying drawings, forming part of this specification, and in which-Figure 1 is-a vertical section of a vaporizer or carburetor embodying myinvention. Fig. 2 is a vertical section of a modified form thereof,wherein the main check-valve is dispensed with. Fig. 3 is a horizontalsection substan-' tially on the line at a; of Fig. 2.

As shownin the drawings, 2 represents the cylinder of a gasolene orother explosion enfrom.

prises the two parts 3 and 3, the latter being provided with anair-inlet opening 7 in its lower end. 5 indicates a check-valve adaptedto be seated by the back pressure from the weight to slightly oppose thepassage of air therethrough. At'one side of the mixingchamber is areservoir 8, supplied with gasolene or other oil through a pump-pipe 9.

10 is an overflow-pipe, and the oil is always kept at the level of thetop of the overflowpipe, so that there is a given head of oil alwayspresent in the reservoir.

At one side of the reservoir 8 is a duct 11, having a small opening 13into the lower part of the reservoir beneath the surface of the oiltherein. The'd'nct llleads upward and connects with a horizontal duct 1%of such a size as to allow the passage of only a very small stream ofoil. The flow of oil through the duct is controlled by a pin-valve 12.The

duct 14 preferably discharges through a small nozzle 15 into themixing-duct 16, which extends to or opens into the chamber 19 betweenthe two valves 5-and 6. The end of the duct 16 is preferably extendeddownwardly, as

shown, opposite the nozzle 15 in order that the stream of oil from thenozzle may be broken up to insure its mixture with the air which entersthrough the opening 17 in the duct 16.

This opening 17 is preferably opposite the nozzle 15, and the airrushing across the nozzle operates to siphon the oil therefrom. Apipe'lS, extending from an opening or channel in the cylinder, may bevconnected with the opening 17 to supply'the hot air thereto. o

To prevent back pressure from the space 19, I prefer to arrange a smallgravity-valve 20 to normally close the duct 16.

The operation of this device is as follows:

When the piston travels forward in the cyl- 5 inder, a partial vacuumwill be created and the air will rush through the opening 7 and raisethe valves 5 and 6; but being somewhat resisted by these valves aproportionatelygreater body of air will enter through the T00 opening 17opposite the nozzle 15 to draw the oil upward from the reservoir 8 anddischarge it, with such air, into the duct 16. This current of air willopen the valve 20, and the heavily-charged air from the duct 16 willpass into the space 19, where it will mix with the larger body of freshair and will be carried upward through the valve 5 and into thecylinder. Upon the backward or compression stroke of the piston thevalve 5 will be automatically closed, as will also the valves 6 and 20,thereby preventing the escape of the gases from the cylinder and alsopreventing back pressure through the duct 16, which back pressure willoperate to force back the oil in the duct 15 and prevent the supply ofoil for the next succeeding charge to the cylinder.

The nozzle 15 is not essential to the operation of the device, nor isthe valve 5 necessary. This I have indicated in Figs. 2 and 3, where itwill be seen that the valve 5 is omitted and the valves 6 and 20 aredepended upon to prevent the escape of the gases from the cylinder. Iprefer, however, to use two valves 5 and 6, the valve 5preventing thefilling of the space 19 with dead gases after an explosion. The duct 16,Figs. 2and 3, maybe a straightduct, and the air opening or openings 17may enter at right angles to both the duct 16 and the oil-supply duct14:. The rush of air before the duct 1e will operate to suck the oilfrom said duct and the reservoir 8.

The device illustrated is most simple in its construction and cannotreadily get out of order. The flow of oil is easily controlled, and,furthermore, the oil-feed is entirely automatic with respect to and isproportionate to the work required of the engine. a

The vaporizer may be advantageously employed with any type ofexplosion-engine.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a vaporizer for an explosion-engine, thecombination, with the cylinder, of the mixing-chamber 19, provided withthe airinlet in its lower part and having in its upper part a portleading into said cylinder, valves provided in said inlet-opening andsaid port, to be closed by back pressure from said cylinder, the valveof said inlet being smaller than of said port, the overflow-reservoir 8,the gasolene-inlet, and the overflowpipes connected therewith, thevalvecontrolled upwardly-extending duct in said reservoir, thehorizontally-extending mixing-duct 16, also therein and larger than saidgasoleneduct, said mixing-duct communicating with said chamber 19, asand for the purpose specified.

2. The combination, with the valve-chamber provided with a back-checkair-valve, of the gasolenereservoir wherein the gasolene is maintainedat an even level, a duct 11 extending upwardly therefrom, a valvetherein, a vapor-duct 16 connecting the same with said valve-chamber,and a transverse airopening in said vapor-duct adjacent to thedischarge-point of the duct 11 from said reservoir, said vapor-ducthaving a downwardlyextending portion intermediate between thereservoir-duct and said valve-chamber, and provided with a back-checkvalve, substantially as described.

3. The combination, of the valve-chamber provided with the back-checkvalve 6 and having the air-inlet opening 7, with the reservoir 8, havinginlet and outlet pipes 9 and 10, and also provided with the ducts 11 and14, the horizontal nozzle 15, the vapor-duct 16 into which the sameprojects, and said vaporduct having a back-check valve and beingprovided with an air-opening 17 opposite said nozzle through which asmall quantity of air is admitted for initial mixture with the liquiddrawn from said duct 11, substantially as described. v

4. In a vaporizer for an explosion-engine, the combination, with thecylinder, of the mixing-chamber provided with the air-inlet in its lowerpart and having in its upper part a port leading into said cylinder,valves 5 and 6 provided respectively in said port and said inlet-openingto be closed by back pressure from said cylinder, the reservoir 8, thegasolene-inlet, the duct 11 communicating with saidreservoir, thehorizontal duct 14 communicating with said duct 11 the mixing-duct 16,the air-inlet opening 17 leading into said.

duct 16, and the gravity-valve 20 provided in the space between saidport and said inletvalves and adapted to normally close said duct 16,substantially as described.

In testimony whereof I have hereunto set my hand, this 5th day ofFebruary, 1898, at Minneapolis, Minnesota.

CLARENCE O. \VIIITE.

In presence of G. G. IIAWLEY, RICHARD PAUL.

